The information above shown for interest, has been gleaned from a number of sources, and is hopefully accurate.
However if you spot a correction that should be made to the list, please send me a note through the feedback form.

Final mileages for the Q1 are not available.
Despite checking with Search Engine at the National Railway Museum, the record cards show the general repair mileages, but sadly not the final mileage for any Class member.
However, totalling the service mileages shows that some class members ran very close to a remarkable 1,000,000 miles.